Troubleshooting; Front Panel Power Indicator Is Not Lit; Fuse Replacement; No Sound - Rotel RA1520 Bedienungsanleitung

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Troubleshooting

Most difficulties in audio systems are the result of incorrect connections,
or improper control settings. If you encounter problems, isolate the area
of the difficulty, check the control settings, determine the cause of the fault
and make the necessary changes. If you are unable to get sound from
the RA-1520 refer to the suggestions for the following conditions:
Power Indicator Is Not Lit
The power indicator ring around the power button should be lit whenever
the RA-1520 is plugged into the wall power outlet and the POWER
switch is pushed in. If it does not light, test the power outlet with another
electrical device, such as a lamp. Be sure the power outlet being used is
not controlled by a switch that has been turned off.

Fuse Replacement

If another electrical device works when plugged into the power outlet, but
the power indicator still will not light when the RA-1520 is plugged into
the wall outlet, it indicates that the internal power fuse may have blown.
If you believe this has happened, contact your authorized Rotel dealer to
get the fuse replaced.

No Sound

Check the signal source to see if it is functioning properly. Make sure
the cables from the signal source to the RA-1520 inputs are connected
properly. Be sure the LISTENING selector is set to the proper input. Be
sure the SPEAKERS selector is set to the proper position. Check the wiring
between the RA-1520 and the speakers.

Protection Indicator Is Lit

The front panel indicator lights when the RA-1520 protection circuits
have shut off the amplifier. Typically, this occurs only when the ventilation
openings are blocked, when there is faulty speaker wiring, or after a
period of extreme use. Turn off the system and wait for the amp to cool.
Then push the front panel power switch in and out to reset the protection
devices. If the problem is not corrected or reoccurs, there is a problem
with the system or the amplifier itself.

Remote Control Code Conflicts

Rotel uses the same IR remote control codes for all its audio products.
In systems that have multiple Rotel products, the IR control codes of a
remote control that is supplied with one product may interfer with the
control codes of another product. The RR-AT94 and the RA-1520 can be
set to alternate control codes to prevent such conflicts.
To change the IR codes of the RR-AT94, press the Phono button and the
2 button at the same time. To change the IR codes of the RA-1520, point
the RR-AT94 at the RA-1520 then press and hold the 2 button for 5
seconds. The LED in the volume control will flash to indicate the IR code
has changed.
Note: After changing the remote codes for the remote control
and the preamplifier as described above, the remote control will
no longer operate the Rotel tuners. To return the RR-AT94 IR code
to the default setting, press the Phono button and the 1 button at
the same time. To return the IR code of the RA-1520 to the default
setting, point the RR-AT94 at the RA-1520 and press and hold the
1 button for 5 seconds. The LED in the volume control will flash to
indicate the IR code has changed.

Resetting the IR code

Should you need to reset the IR code, press the MUTE button
RR-AT94 remote control for more than 5 seconds while pointing it at
the RA-1520. The unit will return to default condition and the Listening
q
CD LED will turn on to indicate the IR code is reset. Contact your
authorized Rotel dealer for further information.

Specifications

Continuous Power Output
(20-20 kHz, < 0.03%, 8 ohms)
Total Harmonic Distortion (20Hz-20kHz)
at rated power, 1/2 power, or 1 watt
Intermodulation Distortion (60 Hz : 7 kHz, 4:1)
at rated power, 1/2 power or 1 watt
Frequency Response:
Phono Input
Line Level Inputs
Damping Factor (20Hz-20kHz, 8 ohms)
Line Input Sensitivity / Impedance
Line Input Overload
Phono (MM) Sensitivity / Impedance
Input (Phono) Overload
Preamplifier Output / Impedance
Signal to Noise Ratio (IHF "A" weighted)
Power Requirements:
USA:
EC:
Power Consumption
Dimensions (W x H x D)
Front Panel Height
Weight (net)
All specifications are accurate at the time of printing.
Rotel reserves the right to make improvements without notice.
Rotel and the Rotel Hi-Fi logo are registered trademarks of The Rotel Co, Ltd.,
Tokyo, Japan.
11 11
A on the
60 watts/channel
< 0.03%
< 0.03%
20Hz-15kHz, ±0.2dB
10Hz-100kHz, +1, –3dB
150
170 mV / 24k ohms
5 V
2.8mV /47k ohms
170mV
1V / 470 ohms
>95 dB
120 Volts, 60 Hz
230 Volts, 50 Hz
300 watts
431 x 99 x 339 mm
2U (88.1mm)
7.8 kg, 17.2 lbs.